Fallout 3 Walkthrough :

This walkthrough for Fallout 3 [PC] has been posted at 18 Aug 2011 by Passerby and is called "Followers". If walkthrough is usable don't forgot thumbs up Passerby and share this with your freinds. And most important we have 9 other walkthroughs for Fallout 3, read them all!

Walkthrough - Followers

Followers
There are eight followers that you can get at the indicated locations with the appropriate
Karma:
Butch (requires neutral Karma): Successfully complete the "Trouble On The Homefront"
quest, and make sure the Overseer has been killed or has stepped down, or sabotaged the
Vault in its entirety. Then, look for Butch at the Muddy Rudder Bar in Rivet City.
Charon (requires any Karma): This ghoul can be found in The Underworld at The Ninth
Circle. You can buy his contract from Ahzrukal for 2,000 Caps (or 1,000 Caps with Barter
at 50+). It is also possible to get his contract by killing Greta at Carol's Place.
Clover (requires very bad Karma): She can be bought from Eulogy in Paradise Falls for
1,000 Caps (or 500 Caps with enough Barter skill).
Dogmeat (requires any Karma): Found in the Scrapyard. On the world map, the Scrapyard is
in the top right corner of the square that is two squares directly below Minefield. Follow
the clear triangle on your compass if you are having problems finding it. Enter the
Scrapyard, and look/listen for fighting. Your will find Dogmeat fighting a Raider. Once
the Raider is dead, you can talk to Dogmeat and ask him to join you.
Fawkes (requires good Karma): You will meet Fawkes during your main quest when exploring
Vault 87. She will not immediately join you, but you can easily recruit her when you get
out of Raven Rock. Fawkes is/was a woman. She is now a Super Mutant, and they do not
really have a gender either way. Note: When Fawkes joins for the first time, she does not
seem to take a follower spot. This means you can already have a follower (or even have
assembled a small party) before you recruit Fawkes at Raven Rock. Simply avoid her the
first time when you get out, and recruit her later to get the best result.
Jericho (requires bad Karma): Jericho can be found in Megaton. If you pay him 1,000 Caps
for supplies, he will join you.
Sergeant RL-3 (requires neutral Karma): You can buy Sergeant RL-3 from a merchant who
sells robots wandering the Wasteland. His name is Mr. Tinker, and can be found nearby or
around the RobCo Factory. It is a somewhat random encounter, so you may need to use the
wait function for him to appear.
Star Paladin Cross (requires good Karma): You can recruit this Brotherhood Lady in the
Citadel, in the same room with Liberty Prime (the large robot). She is on the upper floor.
Note: You must keep your Karma positive or she will leave you.